util: add ability to disable afb logging macro usage

[staging/windowmanager.git] / src / util.hpp

diff --git a/src/util.hpp b/src/util.hpp
index 2fe6e84..b3f43de 100644 (file)
--- a/src/util.hpp
+++ b/src/util.hpp
@@ -1,29 +1,109 @@
-#ifndef WM_UTIL_H
-#define WM_UTIL_H
+/*
+ * Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-#ifdef __cplusplus
+#ifndef WM_UTIL_HPP
+#define WM_UTIL_HPP
+
+#include <functional>
+#include <thread>
+#include <vector>
+
+#include <sys/poll.h>
+
+#ifndef DO_NOT_USE_AFB
 extern "C" {
+#include <afb/afb-binding.h>
+};
 #endif
 
+#define CONCAT_(X, Y) X##Y
+#define CONCAT(X, Y) CONCAT_(X, Y)
+
 #ifdef __GNUC__
-#define ATTR_FORMAT(stringindex, firsttocheck) __attribute__((format(printf, stringindex, firsttocheck)))
+#define ATTR_FORMAT(stringindex, firsttocheck) \
+   __attribute__((format(printf, stringindex, firsttocheck)))
+#define ATTR_NORETURN __attribute__((noreturn))
 #else
 #define ATTR_FORMAT(stringindex, firsttocheck)
+#define ATTR_NORETURN
 #endif
 
-void lognotice(char const *fmt, ...) ATTR_FORMAT(1,2);
-void logerror(char const *fmt, ...) ATTR_FORMAT(1,2);
-void fatal(char const *fmt, ...) ATTR_FORMAT(1,2);
+#ifdef AFB_BINDING_VERSION
+#define lognotice(...) AFB_NOTICE(__VA_ARGS__)
+#define logerror(...) AFB_ERROR(__VA_ARGS__)
+#define fatal(...)            \
+   do {                       \
+      AFB_ERROR(__VA_ARGS__); \
+      abort();                \
+   } while (0)
+#else
+#define lognotice(...)
+#define logerror(...)
+#define fatal(...)            \
+   do {                       \
+      abort();                \
+   } while (0)
+#endif
 
 #ifdef DEBUG_OUTPUT
-void logdebug(char const *fmt, ...) ATTR_FORMAT(1,2);
+#ifdef AFB_BINDING_VERSION
+#define logdebug(...) AFB_DEBUG(__VA_ARGS__)
 #else
-static inline void logdebug(char const * fmt, ...) ATTR_FORMAT(1,2);
-static inline void logdebug(char const * fmt, ...) {}
+#define logdebug(...)
+#endif
+#else
+#define logdebug(...)
 #endif
 
-#ifdef __cplusplus
-}
+#ifndef SCOPE_TRACING
+#define ST()
+#define STN(N)
+#else
+#define ST() \
+    ScopeTrace __attribute__((unused)) CONCAT(trace_scope_, __LINE__)(__func__)
+#define STN(N) \
+    ScopeTrace __attribute__((unused)) CONCAT(named_trace_scope_, __LINE__)(#N)
+
+struct ScopeTrace {
+   thread_local static int indent;
+   char const *f{};
+   explicit ScopeTrace(char const *func);
+   ~ScopeTrace();
+};
 #endif
 
-#endif // !WM_UTIL_H
+//      _                   _                 _                       __     _
+//  ___| |_ _ __ _   _  ___| |_   _   _ _ __ (_) __ _ _   _  ___     / _| __| |
+// / __| __| '__| | | |/ __| __| | | | | '_ \| |/ _` | | | |/ _ \   | |_ / _` |
+// \__ \ |_| |  | |_| | (__| |_  | |_| | | | | | (_| | |_| |  __/   |  _| (_| |
+// |___/\__|_|   \__,_|\___|\__|  \__,_|_| |_|_|\__, |\__,_|\___|___|_|  \__,_|
+//                                                 |_|         |_____|
+struct unique_fd {
+   int fd{-1};
+   unique_fd() = default;
+   explicit unique_fd(int f) : fd{f} {}
+   operator int() const { return fd; }
+   ~unique_fd();
+   unique_fd(unique_fd const &) = delete;
+   unique_fd &operator=(unique_fd const &) = delete;
+   unique_fd(unique_fd &&o) : fd(o.fd) { o.fd = -1; }
+   unique_fd &operator=(unique_fd &&o) {
+      std::swap(this->fd, o.fd);
+      return *this;
+   }
+};
+
+#endif  // !WM_UTIL_HPP